How much difference will a gear change give you? I have a 72 nova with the stock limited slip and 308 ring and pinion. It has a mild 350 with a th350 trans and is a dog off the line. I was told by the guy I got it from the motor is fresh with a mild cam. In doing a little research I have found it has 76 cc smog heads on it and an even 150 pounds of compression on all cylinders. Im in a debate on which route will give me the takeoff I desire. I have purchased a set of fresh 327 camel backs with 62 cc chambers and a fairly moderate cam, lunati voodoo with 268 duration and good lift but I also purchased a 373 ring and pinion. I have the funds to do either upgrade but not both. Any suggestions as to which will be more beneficial? Here is a little more info on the cam it has a 268/276 advertised duration and 489/504 lift. I also have a 1500 stall converter in the trans. Well it flashes at 1500 anyway. Thanks in advance for any advice or suggestions.